20954625

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 39087360

約数和(自身を除く): 18132735

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 125, 173, 255, 285, 323, 375, 425, 475, 519, 865, 969, 1275, 1425, 1615, 2125, 2375, 2595, 2941, 3287, 4325, 4845, 6375, 7125, 8075, 8823, 9861, 12975, 14705, 16435, 21625, 24225, 40375, 44115, 49305, 55879, 64875, 73525, 82175, 121125, 167637, 220575, 246525, 279395, 367625, 410875, 838185, 1102875, 1232625, 1396975, 4190925, 6984875, 20954625]

約数ペア:

[(1, 20954625), (3, 6984875), (5, 4190925), (15, 1396975), (17, 1232625), (19, 1102875), (25, 838185), (51, 410875), (57, 367625), (75, 279395), (85, 246525), (95, 220575), (125, 167637), (173, 121125), (255, 82175), (285, 73525), (323, 64875), (375, 55879), (425, 49305), (475, 44115), (519, 40375), (865, 24225), (969, 21625), (1275, 16435), (1425, 14705), (1615, 12975), (2125, 9861), (2375, 8823), (2595, 8075), (2941, 7125), (3287, 6375), (4325, 4845)]